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Arzikulov, Z. and Ergashev, T. 2025. Particular solutions of the multidimensional singular ultrahyperbolic equation generalizing the telegraph and Helmholtz equations. Bulletin of the Karaganda University. Mathematics Series. 118, 2 (Jun. 2025), 16–27. DOI:https://doi.org/10.31489/2025m2/16-27.